Federal tax filing is easier to understand when the forms are organized around the task you are trying to complete. This Tax Guides hub connects common filing questions with the current federal forms and schedules that handle them.
If you already know the exact form number, go directly to the Federal Forms directory. If you are starting with a question—such as how to extend a return, correct a filing, report self-employment income, or understand a Form 1099—use the topic groups below.
File or update an individual income tax return
The main U.S. individual income tax return is Form 1040. Eligible older taxpayers can choose Form 1040-SR, which is an alternative individual income tax return rather than an attachment to Form 1040.
- Form 1040 — U.S. Individual Income Tax Return
- Form 1040-SR — U.S. Tax Return for Seniors
- Form 4868 — Application for an automatic extension of time to file
- Form 1040-X — Amended U.S. Individual Income Tax Return
- Form 1310 — Statement of Person Claiming Refund Due a Deceased Taxpayer
An extension of time to file is not automatically an extension of time to pay. Check the current IRS instructions for the return year and your circumstances.
Withholding and estimated tax
Employees generally use Form W-4 to give withholding information to an employer. Taxpayers who need to make estimated payments can review Form 1040-ES, while Form 2210 addresses certain underpayment-of-estimated-tax calculations and filing situations.
- Form W-4 — Employee’s Withholding Certificate
- Form 1040-ES — Estimated Tax for Individuals
- Form 2210 — Underpayment of Estimated Tax
Self-employment and small business filing
A sole proprietor commonly calculates business profit or loss on Schedule C. Self-employment tax is generally calculated separately on Schedule SE. Businesses with depreciable assets may also need Form 4562, while sales or other dispositions of business property can involve Form 4797.
- Schedule C — Profit or Loss From Business
- Schedule SE — Self-Employment Tax
- Form 4562 — Depreciation and Amortization
- Form 4797 — Sales of Business Property
- Schedule F — Profit or Loss From Farming
Deductions that affect an individual return
Some deductions are itemized, some adjust income, and others use specialized schedules. The correct location matters because the deductions can affect adjusted gross income, taxable income, or a separate statutory calculation.
- Schedule A — Itemized Deductions
- Schedule 1 — Additional Income and Adjustments to Income
- Schedule 1-A — Additional Deductions for qualified tips, overtime, passenger vehicle loan interest, and eligible seniors for 2025
- Form 8889 — Health Savings Accounts
- Form 8283 — Noncash Charitable Contributions
Credits for families, education, health coverage, and energy
Federal credits often require a separate form or schedule before the result reaches Form 1040. Eligibility rules can involve income, identification numbers, qualifying expenses, household members, or tax liability.
- Schedule 8812 — Credits for Qualifying Children and Other Dependents
- Form 2441 — Child and Dependent Care Expenses
- Form 8863 — Education Credits
- Form 8962 — Premium Tax Credit
- Form 5695 — Residential Energy Credits
Interest, dividends, retirement distributions, and payment-platform forms
Receiving a Form 1099 does not by itself tell you whether the full amount is taxable or where every amount belongs on a return. The information return identifies payments or transactions; the tax treatment depends on the relevant tax rules and the recipient’s facts.
- Form 1099-INT — Interest Income
- Form 1099-DIV — Dividends and Distributions
- Form 1099-R — Distributions From Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, etc.
- Form 1099-NEC — Nonemployee Compensation
- Form 1099-K — Payment Card and Third Party Network Transactions
Capital gains and investment transactions
Capital transactions can require more than one form. Individual sales may be listed or adjusted on Form 8949, with totals and other capital items flowing through Schedule D. Business-property dispositions may instead begin with Form 4797.
- Form 8949 — Sales and Other Dispositions of Capital Assets
- Schedule D — Capital Gains and Losses
- Form 4797 — Sales of Business Property
Retirement accounts and tax-favored accounts
Retirement and health-account reporting can involve basis, contributions, distributions, early-distribution exceptions, excess contributions, and required minimum distributions.
- Form 8606 — Nondeductible IRAs
- Form 5329 — Additional Taxes on Qualified Plans and Other Tax-Favored Accounts
- Form 8889 — Health Savings Accounts
- Form 1099-R — Retirement distributions
Foreign income and foreign tax
U.S. taxpayers with foreign income may need to coordinate multiple rules rather than simply exclude all foreign income. Form 2555 addresses the foreign earned income and housing exclusions or deduction, while Form 1116 calculates the foreign tax credit for individuals when required.
IRS authorization, transcripts, and payment arrangements
Some federal forms do not calculate tax at all. They may authorize another person, request tax information, or propose a payment arrangement.
- Form 2848 — Power of Attorney and Declaration of Representative
- Form 8821 — Tax Information Authorization
- Form 4506-T — Request for Transcript of Tax Return
- Form 9465 — Installment Agreement Request
Use the current final IRS product
Tax forms can be annual or continuous use, and a revision year is not always the same as a tax or filing year. Each Federal Form Guide core page is designed to identify the current product we verified and link readers to the official IRS source.
For our research method, read the Sources & Verification Policy. To browse the full database by form number or category, visit Federal Forms.